Finding the Fourth Proportional to 490,616.70, 735,378.30 and 190,997.70
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Solution
The fourth proportional to 490,616.70, 735,378.30 and 190,997.70 is: 286,283.70
Step by Step Solution
- Step 1: Write the proportion equation
490,616.70 : 735,378.30 = 190,997.70 : x - Step 2: Convert to fraction form
490,616.70/735,378.30 = 190,997.70/x - Step 3: Cross multiply
490,616.70x = 735,378.30 × 190,997.70 - Step 4: Simplify right side
490,616.70x = 140,455,563,929.91 - Step 5: Solve for x
x = 140,455,563,929.91/490,616.70 - Step 6: Final answer
x = 286,283.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.